Methods for full utilization of the bandwidth of fiber optical parametric amplifiers and wavelength converters

In fiber optical parametric amplifiers (OPAs), idlers are generated during the amplification process. For very wide and dense signal input spectra, idlers may overlap with signals, thereby interfering with proper operation as an amplifier. In this paper, filter-based methods to fully utilize the ban...

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Bibliographic Details
Published in:Journal of lightwave technology 2006-10, Vol.24 (10), p.3683-3690
Main Authors: Kalogerakis, G., Marhic, M.E., Uesaka, K., Shimizu, K., Wong, K.K.-Y., Kazovsky, L.G.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Circuit properties
Converters
Detection, estimation, filtering, equalization, prediction
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber optics
Idlers
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
Interleaving filters
nonlinear fibers
Operational amplifiers
optical amplifier
Optical amplifiers
Optical and optoelectronic circuits
Optical crosstalk
Optical fiber amplifiers
Optical fibers
Optical filters
optical parametric amplifier (OPA)
Optical wavelength conversion
Parametric amplifiers
Semiconductor optical amplifiers
Signal and communications theory
Signal, noise
Spectra
Stimulated emission
Telecommunications and information theory
wavelength conversion
Wavelengths
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Description
Summary:In fiber optical parametric amplifiers (OPAs), idlers are generated during the amplification process. For very wide and dense signal input spectra, idlers may overlap with signals, thereby interfering with proper operation as an amplifier. In this paper, filter-based methods to fully utilize the bandwidth of OPAs and wavelength converters in the presence of very broad signal spectra are investigated. In the basic filter setup, two parallel OPAs and two filters are used; alternatively, one can use a single OPA bidirectionally and a single filter. An interleaver-based arrangement, separating signals from idlers at the system output, with a crosstalk of below -20 dB and subdecibel bit-error-rate penalty, is experimentally demonstrated
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2006.882248